Improvement in can-seaming machines



'1.11. & G. H. PERKINS.

Can-Seaming Machines.

N0.]50,v607, i. Paten'tedMay5,l1874.

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JAMES H. PERKINS AND GEORGE H. `PERKINS', OF PHILADELPHIA, PA.,ASSIGNORS TO THEMSELVES, JOSEPH LE COMTE, OF NEW YORK, N. Y., ANDATLANTIC REFINING COMPANY, OF PHILADELPHIA, PA.

IMPROVEMENT IN CAN-SEAMlNG MACHINES@ Specification forming part ofLetters Patent No. l 50,607, dated May 5, 1874; application filedDecember 17, 1873.

CASE E.

To all whom it may concern:

Beit known that we, JAivrEs H. PERKINS and GEORGE H. PERKINS, ofPhiladelphia, Pennsylvania, have invented a Machine for Closing theScams of Sheet-Metal Cans, of which the following is a specification:

The object of our invention is to close the bottom and top seams orjoints ot' square sheetmetal cans, by combining a table, E, and devicesfor retaining the can A on the same, with two connected and guidedslides carrying rollers, by the pressure ot' which the opposite seams ofthe can can be simultaneously closed, in the manner fully describedhereafter, and as shown in the perspective view, Figure 1, of theaccompanying drawing.

In the present instance a pressure-plate, F, is hung to the outer end ofan arm, G, which is jointed to a rod, H, arranged to slide in a socketformed in the stand I, and containing an adjustable spring forsupporting the rod, so that the plate F, when depressed, willaccommodate itself to the top of the can. The sliding frame consists oftwo bars, B B, adapted to guides D D, and connected together by rods b,so bent that they can pass over and free from contact withl the can,pressure-plate, and arm G, the rods themselves being connected togetherby cross-bars b', forming handles by which the operator can grasp theframe and move it to and fro in its guides. The bottom n of the can,bent at its four edges, as shown in Fig. 2, is placed on the table E,between the guides D D, and the larin g lower end of the body of the canis placed on the bottom within the turned-up edges of the latter, afterwhich the operator depresses the arm G 'by means of a rod, H', and atreadle or other suitable appliances, so asto cause the plate F to bearon the top of the can, and to maintain the latter steadily on the table,while the pressure-plate F above the top of the can,

which' can be removed, turned, and placed in such a position that thetwo remaining seams can be closed by a second movement of the slidingframe, after which the can can be rcmoved and soldered.

We do not conne ourselves to the pressureplate F or other device forapplying pressure to the top of the can, as the latter might be confinedto the table with sufficient iirmness by devices adapted to its sides orend; nor do we claim, broadly, a. roller for closing the seam of a can;but

We claim as our invention- A table or bed, E, and devices for retaininga can thereon, in combination with the two connected and guided slides Band their roll ers, the whole being constructed substantially as setforth, so that the said rollers can be brought to operate simultaneouslyon opposite seams of a square can.

In testimony whereof we have signed our names to this specification inthe presence of two suhscribin g witnesses.

i JAMES H. PERKINS.

GEORGE H. PERKINS.

Witnesses WM. A. STEEL, HARRY SMITH.

